Sheep-shearer.



H. S. BURLEY.

SHEEP sHBvARER. APPLIUAQ'ION PILE'D JUNB'27.1904.

PATENTED MAY `23, 1905.

2 SHEETS-SHEET 1.

H is' N0'.v9o,285. PATENTED MAY2s,19o'5.

H. S.'BURLEY.

` SHEEP SHEARBR-- APPLICATION FILED JUNE 27.1904.

Harry Patented May 23, 1905.

PATENT OEEIcE.

HARRY S. BURLEY, OF CHICAGO, ILLINOIS.

'SHEEP-SHEARER.

' SPECIFICATION forming part of Letters Patent N o. 790,285, dated May 23, 1905.

' Application tied June 27,1904. serial No. 214.358.

To' @Zt whom, t may concern:

Be it known that I, HARRY S. BURLEY, a citizen of the United States, and a resident of Chicago, in the county of Cook; and State of Illinois, have invented certain new and useful Improvements in Sheep-Shearers, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings.

y invention relates to sheep-shears; and its objects are to provide a ball-bearing vibrator the fulcrum andrear portion of which is inclosed within a dust-proof case, which `accomplishes a great saving of lubricant and avoids the heating of the parts caused by foreign matter getting into said bearings, as

well as the rapid wear of the same, and which has the cutters and parts cooperating therewith so constructed that the cutting edges of said cutters will always bear fiat u on the comb and wear evenly and has its earings adjustable, so as to prevent the rattling of the parts and take up the Wear of the cutters. This I accomplish by the means hereinafter fully described, and as particularly pointed out in the claims.

In the drawings, Figure 1 is a side view of a sheep-shears embodying my improvements, showing the rear portions of 'the handle broken away. Fig. 2 is a plan view of the same. Fig. '3 is a longitudinal vertical section taken on dotted line 3 3, Fig. 8, looking in the directionindicated by the arrows. Fig. 4 is a plan view of my invention, showing the top plate and the cap of the fulcrum-chamber of the case removed. Fig. 5 is a front end view of said shears. Fig. 6 is a plan view of the under side of the vibrator. Fig. 7 is a side view thereof. Fig. 8 is a detail view showing theball-bearing cup used in connection with said vibrator in perspective.

In the drawings, A represents a suitable handle, through the bore of which a shaft a extends longitudinally, which is actuated by suitablel mechanism engaging its rear end. The forward end of this shaft a extends into the trough of a suitable hollow casing B and is provided with a disk b, from which a stud b projects from ,a point eccentric to the center thereof, that has its extremity terminate in a spherical knob, substantially as shown.

shaped head g,

The inner chamber of the casing B tapers from its point of connection with the handle toward its end, and the wall of the forward end of said chamber is struck from a point coinciding with the vertical axis of the pivot of the vibrator. The Avibrator comprises a comparatively long metal member having a pivotal boss c mediate its ends, from which a shorter arm d extends to the rear and carries a vertically-disposed barrel d on its rear extremity, which is en aged by the spherical extremity of the stu b, which latter enters the bore of said barrel through a vertical longitudinal slot in the rear side thereof. The radius of the curved front side of the pivotal boss c is preferably greater than that of the rear side and corresponds to that of the inner wall of the front of the case B, which it engages, and closes an opening in the front end Yof the case, out through which the forward arm C of the vibrator extends. Arm C extends from boss c, opposite arm d, and in the same direction thereas, except that arm C inclines downward toward its forward extremity, where it is provided with corresponding laterally-projecting curved bifurcations D D, the extremities of which are downturned and which near said extremities are provided with gage-.screws D, that enter suitable sockets or openings in the upper surface of the body of the cutter E. Cutter E rests and slides laterally upon the comb F, which latter is of the usual construction and has its back and rear portions securely fastened by screws or otherwise to the under side of a horizontal apron or platform c, proj ecting forward from the lower portion of the front of the case, as shown.

The cutter, which has three arrow-shaped points, has the downwardly-turned extremi-` ties of the bifurcations of the arm C bearing down upon the two end points thereof and has bearing down upon its central point the forward extremity of a tongue G. This tongue extends back through a suitable -longitudinal channel or groove made in the under side of arm C and terminates in a suitablythat is pivoted in the bore of the boss c of the vibrator by a transverse pin, and has above its pivot an upwardly and forwardly projecting extension h, the rear surclosed by a plate face of which is fiat and 'in an inclined transverse plane of about ninety degrees to the perpendicular. The flat bottom of a circular cup H bears upon this rear inclined flat surface of extension 7L, which cup has a bearingball c' seated in its eoncavity in its opposite side that is engaged by and is seated in an opposing concave bearing in the adjacent end of a hollow oil-lled gage-screw l. This gage-screw is tapped into a suitable bushing penetrating through thewalls of the rear side of the dome of a cap J in an inclined plane at right angles to the meeting-plane of the bearing-cup and extension. Thus when the gagescrew is screwed to move toward the said eX- tension the tongue G bears down on the central point of the cutter, and when screwed so as to move away from the same the pressure of said tongue en the cutter is removed entirely or lessened.

The dome ofthe cap J has its edges flanged and secured, preferably, by suitable screws to the upper edges of the side and front walls of the ease B, and the edges of its forwardlyprojecting langed portion are dropped where it comes above the opening of the case, so as to thoroughly close, in conjunction with the boss of the vibrator, the interior chamber of the case, the top of which latter, between the cap and its rear end, is tightly The bearing ball i forms the upper pivotal contact of the vibrator. The lower pivotal contact is provided with a corresponding bearing-ball 7, the upper rear portion of which is seated in a suitable bearing-cup, the tang of which is secured in the lower part of the bore of the boss c of the vibrator in such position as not to interfere with the limited movement of the head g of tongue G. The lower portion of ball 7c is seated in a suitable concavity in the end of a gage screw K, and the meetingplane of these bearings is in a plane parallel to the meeting-plane of the extension 7L and the cup H. The gage screw K is tapped Athrough the bottom of the case in a plane parallel to the axis of the upper screw I, and by screwing it in or vout the bifurcations of the vibrator are made to press down according as desired upon the end points of the cutter.

In operation it will be evident that the hold of the vibrator upon the cutter, through the medium of its bifurcations and the tongue G, is such that a ,perfect adjustment of the cutters upon the comb is attained, and consequently an even wear of the cutting edges of the points of the cutter results. By making the chamber in which the bearings of the vibrator operate perfectly dust-proof the bearings are kept clean and are not liable te heat, and by the adjustment of the gagescrews any wear of the bearings can be readily taken up and lost motion of the vibrator avoided.

That I claim as new is- 1. Sheep-shears comprising a vibrator fulcrumed mediate its ends, a tongue pivotally connected thereto mediate the pivots of the same, cutters carried on the forward ends ol' said vibrator, and tongue, and a comb engaged thereby.

2. Sheep-shears comprising a vibrator fulcrumed mediate its ends, an adjustable tongue pivotally connected thereto mediate the pivots of the same, cutters carried on the forward ends of said vibrator and tongue, and a comb engaged thereby.

3. Sheep-shears comprising a vibrator fulcrumed mediate its ends, a tongue pivotally connected thereto, ball-bearing pivots for said vibrator mediate which said tongue is pivoted, cutters carried on the forward ends of said vibrator and tongue, and a comb engaged thereby.

4. Sheep-shears comprising a vibratm fulcrumed mediate its ends, an adjustable. tongue pivotally connected thereto, ballbearing pivots for said vibrator mediate which said tongue is pivoted, cutters carried on the forward ends of said vibrator and tongue, and a comb engaged thereby.

5. Sheep-shears comprising a closed casing, a vibrator pivoted mediate its ends within said casing, a tongue pivotally connected thereto mediate the pivots of the same which, together with the forward arm of said vibrator extend through a suitable opening in the forward end of said casing, means operated from the exterior of said easing for adjusting said tongue, cutters connected to the forward end of said vibrator and tongue and a comb engaged thereby.

6. Sheep-shears comprising a vibrator fulcrumed mediate its ends, a tongue adjustable independent of said vibrator and pivotally connected thereto mediate the pivots of the same, cutters carried on the forward ends o'l' said vibrator and tongue, and a comb engaged thereby.

7. Sheep-shears comprising a vibrator fulcrumed mediate its ends, a tongue adjustable independent of said vibrator and pivotally connected thereto, ball-bearing pivots l'or said vibrator mediate which said tongue is pivoted, cutters carried on the forward ends of said vibrator and tongue, and a comb engaged thereby.

8. Sheep-shears comprising a closed casing, a vibrator pivoted mediate its ends witbin said easing, a tongue pivotally connected thereto, which, together with the forward arm of said vibrator, extend through a suitable opening in the forward end of said casing, ball-bearings for said vibrator mediate which said tongue is pivoted, means operated from the exterior of said easing for adjusting said tongue, cutters connected to the forward end of said vibrator and tongue, and a comb engaged thereby.

IOO

9. Sheep-shears comprising a closed casing, a vibrator pivoted within said casing, a tongue pivotally connected thereto, which, together with the forward arm of said vvibrator, extend through a suitable opening in the forward end of said'casing, ball-bearings for said vibrator the upper one of which engages an extension of said tongue, means operated from the exterior of said casing for adjusting said tongue, cutters connected to the forward end of said vibrator and tongue, and a comb engaged thereby.

10. Sheep-shears comprising a closed casing, a vibrator pivoted within said casing, ball-bearing pivots for said vibrator, a tongue pivoted to said vibrator mediate said pivots and having an' extension directly engaged by the uppermost pivot, cutters connected to the forward ends of said vibrator and tongue, and a comb engaged by the latter.

11. Sheep-shears comprising a closed casing, a vibrator pivoted within said casing, adj ustable ball-bearing pivots for said vibrator, a tongue pivoted to said vibrator mediate said pivots and having an extension directly engaged by the uppermost pivot, cutters connected to the forward ends of said vibrator, and tongue, and a comb engaged bythe latter.

12. Sheep-shears comprising a closed casino', a vibrator pivoted within said casing, ball-bearing pivots for said vibrator adjustable in a forwardly-inclined plane, a tongue pivoted to said vibrator mediate said pivots and having an extension directly engaged by the uppermost pivot, cutters connected to the forward ends of said vibrator and tongue, and a comb engaged by the latter.

13. Sheep-shears comprising a vibrator, a tongue pivoted to said vibrator mediate its pivots, and provided with an upward extension having a rear inclined fiat surface, a bearing-cup engaging the same, a bearingball seated in the opposite concaved side of the cup, a gage-screw having a concave seat in its extremity for part of said ball, cutters connected to the forward ends of said vibrator and tongue, and a comb engaged by the latter.

14. Sheep-shears comprising a vibrator, a`

sion having a rear inclined flat surface, a bearing-cup engaging the same, a bearingball seated in the opposite concaved side of the cup, a gage-screw having a concave seat in its extremity for part of said ball, abearing-ball for the lower pivot of said vibrator, a gage-screw therefor, cutters connected to the forward ends of said vibrator and tongue, and a comb engaged by the latter.

15 Sheep-shears comprising a closed casing, a vibrator pivoted within said casing, a tongue pivoted to said vibrator mediate its pivots, and provided with an upward extension having a rear inclined flat surface, a bearing-cup engaging the same, a bearingball seated in the opposite concaved side of the cup, a gage-screw having a concave seat in its extremity for part of said ball, cutters connected to the forward ends of said vibrator and tongue, anda comb engaged by the latter.

16. Sheep-shears comprising a closed casing,` a vibrator pivoted within said-casing, a tongue pivoted to said vibrator mediate its pivots and provided with an upward extension havingy a rear inclined flat surface, a bearing-cup engaging the same, a bearingball seated in the opposite concaved side of the cup, a gage-'screw having a concave seat in its extremity for part of said ball, a bearing-ball for the lower pivot of said vibrator, a

age-screw therefor, cutters connected to the forward ends of said vibrator and tongue, and a comb engaged by the latter.

17. Sheep-shears comprising a vibrator, a

vton ue pivoted thereto whose axis is at right ang es to the axis ofthe vibrator, a cutter carried on the forward ends of said vibrator and tongue, and a comb engaged thereby.

18. Sheep-shears comprisinga vibrator, a ton ue pivoted thereto whose axis is at right ang es to the axis of the vibrator, means for tilting the same forward, a cutter carried on the forward ends of said vibrator and tongue, and a comb engaged thereby.

In testimony whereof I have hereunto set my hand this 7th day of June, 1904.

HARRY S. BURLEY Witnesses: l

E. K. LUNDY, O. M. WENNIOH. 

